A mango tree is 53m away from a building. The window of the building is 2m high. Calculate the angle of depression to the mango tree.

Here are the solutions to your assignment questions:

** (from previous turn, completing the calculation):**
The height of the cliff was calculated as:

$$H = 120 \sqrt{3} \text{ m}$$ $$H \approx 207.846096 \text{ m}$$

Rounding to two decimal places:

$$\boxed{\text{207.85 m}}$$

Problem 'a':
Let $H$ be the height of the window, $H = 2$ m.
Let $D$ be the distance from the foot of the building to the mango, $D = 53$ m.
Let $\theta$ be the angle of depression.